QR Code FAQ
Find answers to the most common questions about QR codes, from basic usage to advanced features.
General
What is a QR code and how does it work?
A QR (Quick Response) code is a two-dimensional barcode that can store various types of information. When scanned with a smartphone camera, it instantly provides access to the encoded data, such as URLs, contact information, or text.
How do I scan a QR code with my phone?
Most modern smartphones have built-in QR code scanners. Simply open your camera app and point it at the QR code. A notification will appear allowing you to open the link or action. You can also download dedicated QR code scanner apps from your app store.
Are QR codes free to create and use?
Yes, QR codes are completely free to create and use. Our QR code generator is free and doesn't require registration. You can create unlimited QR codes without any cost.
Types
What types of QR codes can I create?
You can create QR codes for URLs, text, email addresses, phone numbers, SMS messages, WiFi networks, vCard contact information, geographic locations, and calendar events. Each type serves a specific purpose and provides different functionality when scanned.
How do I create a WiFi QR code?
Use our WiFi QR code generator to input your network name (SSID), password, and security type. When someone scans the code, their device will automatically connect to your WiFi network.
Technical
What's the difference between static and dynamic QR codes?
Static QR codes contain fixed information that cannot be changed after creation. Dynamic QR codes allow you to update the content without changing the QR code itself, and often include analytics to track scans.
How much data can a QR code store?
QR codes can store up to 4,296 alphanumeric characters or 7,089 numeric characters. However, larger amounts of data result in more complex QR codes that may be harder to scan, especially at smaller sizes.
How long do QR codes last?
QR codes don't expire unless the content they link to becomes unavailable. Static QR codes will work indefinitely, while dynamic QR codes depend on the service provider. It's important to maintain the content or services that your QR codes link to.
What file formats can I download QR codes in?
Our QR code generator supports PNG and SVG formats. PNG is ideal for web use and printing, while SVG is perfect for scalable graphics and professional printing. You can also choose different resolutions (1x, 2x, 4x) for PNG downloads.
Do QR codes work offline?
QR codes themselves work offline, but the content they provide depends on the type. Text and contact information work offline, while URLs require an internet connection. Our QR code generator works entirely in your browser, so you can create codes offline.
Design
Can QR codes be customized with colors and logos?
Yes, QR codes can be customized with different colors while maintaining scanability. You can also add logos or images in the center, but it's important to ensure the QR code remains scannable and follows best practices for contrast.
What's the best size for a QR code?
The optimal size depends on the scanning distance. For close scanning (like business cards), 1 inch (25mm) is sufficient. For larger distances, increase the size proportionally. Always test your QR code before final use.
Marketing
Can QR codes be used for marketing?
Absolutely! QR codes are excellent for marketing campaigns. They can link to websites, social media profiles, promotional videos, discount codes, or product information. They're particularly effective for bridging offline and online marketing efforts.
Security
Are QR codes secure?
QR codes themselves don't provide security - they simply contain data. The security depends on what the QR code links to. Always verify the source before scanning QR codes from unknown sources, and be cautious of QR codes that could lead to malicious websites.
Analytics
Can I track how many times my QR code is scanned?
Static QR codes cannot be tracked directly. However, if your QR code links to a website, you can use website analytics to track visits. Dynamic QR codes often include built-in analytics to track scan counts, locations, and timestamps.
Still Have Questions?
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